CN104736909B - It is embodied as the excess pressure valve of check-valves - Google Patents
It is embodied as the excess pressure valve of check-valves Download PDFInfo
- Publication number
- CN104736909B CN104736909B CN201380043451.7A CN201380043451A CN104736909B CN 104736909 B CN104736909 B CN 104736909B CN 201380043451 A CN201380043451 A CN 201380043451A CN 104736909 B CN104736909 B CN 104736909B
- Authority
- CN
- China
- Prior art keywords
- excess pressure
- pressure valve
- housing
- guide sleeve
- obturator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
- F16K15/044—Check valves with guided rigid valve members shaped as balls spring-loaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0406—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/0806—Compression coil springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/0812—Fluid pressure
- F16H2007/0814—Fluid pressure with valves opening on surplus pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/0848—Means for varying tension of belts, ropes, or chains with means for impeding reverse motion
- F16H2007/0859—Check valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7904—Reciprocating valves
- Y10T137/7922—Spring biased
- Y10T137/7927—Ball valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7904—Reciprocating valves
- Y10T137/7922—Spring biased
- Y10T137/7929—Spring coaxial with valve
- Y10T137/7931—Spring in inlet
Abstract
A kind of excess pressure valve (1) for being embodied as check valve or check-valves, its housing constructed with including can-like (2) and valve seat (6), the housing carries bottom (3) and central opening (4), and the valve seat and the obturator (7) of spring force loading act synergistically.In housing (2), load to force closure or shape sealed guide sleeve (9) to accommodate the compression spring (8) of loading obturator (7), which ensure that the structure of the anti-separation of excess pressure valve (1) at the same time.
Description
Technical field
The present invention relates to a kind of excess pressure valve for being embodied as check valve or check-valves, its housing designed with including can-like and
Valve seat, the housing have bottom and central opening, and the valve seat and the obturator of spring force loading act synergistically.
Background technology
In the application of a variety of Machine Manufacturing Technologies (wherein, each component or construction package are loaded by pressure medium)
Some precautionary measures must be taken so that not over by the limit load in the region of pressure-loaded.High load in order to prevent,
By known in the art, excess pressure valve is installed in hydraulic system, it is opened when reaching capacity pressure, and passes through bypass
Or the shunting of passing away discharge hydraulic fluid.
For example, for the hydraulic tensioning equipment of traction mechanism drive, especially chain and sprocket driving device it is necessary that
Limit pressure medium to load to avoid excessive haulage gear, to make friction and wear keep very little.Used to depressurize
Excess pressure valve.For example, shown in DE 41 33 560 A1 and US 6 193 623 and describe hydraulic tensioning equipment, wherein, peace
Equipped with excess pressure valve to avoid high tensioning pressure.600 27 227 T2 of DE disclose another tension equipment, it is related to one kind and includes
The hydraulic chain tension equipment of excess pressure valve.Here, there are step-like hole in flow path, ball is disposed with the hole
Body, the sphere, by spring pre-tightening, and can be abutted on seal receptacle along the direction of axially bored line.When pressure in pressure chamber rises
When, pressure medium is applied on the closed ball of spring pre-tightening, and with causing against by pressure ball.If the pressure becomes
Obtain accordingly big, that is to say, that if the pressure differential in adjacent pressure chambers is sufficiently large, and exceedes the spring force of closed ball,
So will substantially pressure equilibrium.If pressure differential declines, then closure ball is just pressed onto close by spring in a sealing manner again
Seal on seat, thus close excess pressure valve.
The content of the invention
The task of the present invention is providing a kind of hydraulic overpressure valve, its can in a manner of component optimizes and easily builds and
Manufactured in a manner of energy safely assembled and cost.
According to the present invention, in order to realize the structure of anti-separation, force closure ground (the kraftschl ü in over-pressed valve housing
Ssig guide sleeve is loaded) and in alignment, it is specifically used for the compression spring for accommodating loading obturator.Preferably, guide sleeve
By press-fit and/or shape sealed (formschl ü ssig) or in the case of other locking pieces it is permanent firmly
Ground is maintained in guide sleeve or housing.Thus advantageously, compared with excess pressure valve used to date, other are eliminated
Processing step, and eliminate the additional component for locking each component.In addition, guide sleeve provides following possibility,
That is, installation lengthen and and then stronger compression spring to directly affect the opening feature of excess pressure valve.In addition, excess pressure valve according to this
The structure of the anti-separation of invention simplifies transport and the storage management of valve.In traditional excess pressure valve, valve seat is mostly by another
Independent component realizes that the component is cancelled in excess pressure valve according to the present invention, this is because on the one hand obturator is attached troops to a unit
In compression spring, and on the other hand it is associated with valve seat.
It can be realized by using the guide sleeve for compression spring of also referred to as containing body and be limited to four components,
The excess pressure valve of component optimization i.e. in housing, obturator, compression spring and guide sleeve.The also referred to as guide sleeve of containing body
Cause the accurate guiding to compression spring, thus eliminate at the same time along the direction of valve seat to being supported on pressure in side shape sealed
The alignment or balance that obturator on power spring carries out, this advantageously influences the function of excess pressure valve.
Advantageously, the simpler frame mode based on excess pressure valve, can reduce for manufacturing required all parts
Cost.In addition, guide sleeve, which combines the compression spring loaded, can realize assembling simplified, shorten, reliable.In order into one
Step reduces assembly cost, can be by the structure of excess pressure valve according to the present invention using the automatic assembling machine using automatic assembling machine
Component is inserted into attached surrounding structure.It is advantageously possible in other words complete after the complete assembled in advance of excess pressure valve
Into carrying out functional check and Leakage Test after excess pressure valve, compared to for example excess pressure valve is successfully installed in a device it
After carry out, due to simplified inspection or measuring device, the functional check and Leakage Test can be by simpler and and then lower
Into local progress.
Preferably, excess pressure valve according to the present invention is suitable for applying the hydraulic tensioning equipment in traction mechanism drive
In, especially apply in the chain and sprocket driving device of internal combustion engine.The pre-install and excess pressure valve through functional check can be used as knot
Structure component is for example pressed into the receiving portion of the tensioner piston of tension equipment or in the receiving portion of tension equipment housing.
The extra high reliability of excess pressure valve according to the present invention is realized by the guide sleeve being made of plastics.Pass through
Also referred to as plastic barrel, the guide sleeve that can manufacture simply and at low cost realize drawing to the low abrasion of compression spring
Lead.In addition, this side the recess for being embodied as spherical crown shape of the compression spring of the guide sleeve for being made of plastics row
In journey limiting unit, the noise generation to excess pressure valve produces Beneficial Effect.
Guide sleeve according to the present invention is supported directly on sleeve bottom formed with sleeve bottom, compression spring.Pass through
It is preferred that the tap hole processed at center in sleeve bottom, can discharge dividing for hydraulic fluid in the case where excess pressure valve is opened
Stream.It is advantageously possible to highly determine spring force by the wall of sleeve bottom and and then the Opening pressure of definite excess pressure valve.
Here, the present invention provides following possibility, i.e. provides the excess pressure valve with different Opening pressures, these excess pressure valves are only logical
Cross the guide sleeve of differentiated wall height with sleeve bottom and advantageously distinguished with different colors.
In another designing scheme of the present invention, over-pressed valve housing is implemented with including arching, comprising end difference, arch
The bottom constructed to dome-shaped.End difference is axially offset relative to central opening, and obturator is loaded by the central opening to press
Power media.End difference forms the valve seat for being specifically used for obturator in the region of bottom.Advantageously, the rank for causing volume to become larger
Terraced portion makes the oil of inflow become slow, and also reduces the power of obturator in addition.
It is preferred that sphere is arranged to obturator, the sphere is in ideal conditions in step-like arch in the position of closing
Guided on the bottom of dome-shaped, and in open position guide sleeve the spherical crown shape for forming travel limit portion receiving
Guided in portion.
In addition, the function of tension equipment can be improved by excess pressure valve according to the present invention, this is because excess pressure valve passes through
Relatively short pressure united piece (Pressverband) is connected with the tensioner piston or casing section of tension equipment.The arrangement causes to save
Structure space has been saved, it is possible thereby to the main spring that is significantly greater length of, advantageously improving tension equipment function of tension equipment is installed,
The main spring locally surrounds excess pressure valve on the outside.
Excess pressure valve according to the present invention is incorporated into hollow of tension equipment preferably as the construction package of assembled in advance
In tight piston.In order to produce the tensioner piston that can be moved in tension equipment in a manner of energy lengthwise movement, it is preferably provided with low
The impact extrusion method of cost.As the material for over-pressed valve chest, preferably using plate, wherein, particularly set non-cutting
Reshaping or Deep drawing method are used to manufacture.
Brief description of the drawings
Other features of the present invention are obtained by the following description to showing the attached drawing of the embodiment of the present invention, wherein, the present invention
It is not limited to the embodiment.Wherein：
Fig. 1 shows excess pressure valve according to the present invention with longitudinal section；
Fig. 2 shows to be incorporated into the excess pressure valve in the piston of tension equipment；And
Fig. 3 shows tension equipment with longitudinal section, it carries attached excess pressure valve according to the present invention.
Embodiment
Fig. 1 shows the claimed embodiment of excess pressure valve 1, and the construction which includes can-like is the shell of deep-draw part
Body 2.Stairstepping, the bottom 3 designed to dome-shaped include central opening 4, hydraulic fluid can be flowed into by the central opening
In excess pressure valve 1.In inner side, the valve seat 6 of the obturator 7 for being configured to sphere is formed in the region of end difference 5 on bottom 3.Envelope
Closure 7 is supported on valve seat 6 by 8 force closure of compression spring.For this reason, compression spring 8, which is installed on, is also referred to as plastic barrel
In guide sleeve 9, and it is supported on its sleeve bottom 10.On the one hand optimal accurate guiding to obturator 7 passes through guiding
Spherical crown shape the or convex receiving portion of sleeve 9 or travel limit portion 12 realize, and on the other hand by the stairstepping of housing 2
Bottom 3 realize.It is pressed into housing 2 to 9 preferred force closure of guide sleeve, or material (stoffschl in locking manner as an alternative
ü ssig) it is fastened in it.Thus, all parts of excess pressure valve 1 are assembled into a structure group with will not losing ground or anti-separation
Part.The spring force of compression spring 8 can be influenced and and then influence obturator 7 in valve seat 6 by the wall height H of sleeve bottom 10
On support force.The quilt in the case where excess pressure valve 1 is opened can be exported by the tap hole 11 processed in sleeve bottom 10
The hydraulic fluid of discharge.
Figure 2 illustrates the excess pressure valve 1 in the state of installing.By pressing united piece 13, excess pressure valve 1 is consolidated in bottom side
In the tensioner piston 14 for the tension equipment 15 being scheduled on shown in Fig. 3.Change since relatively short pressure united piece 13 can be advantageously introduced into
Into the main spring 16 function, lengthening of tension equipment 15.
Fig. 3 shows and is incorporated into the tension equipment 15 that the excess pressure valve according to the present invention 1 in tensioner piston 14 connects.According to
The tensioning apparatus 15 of Fig. 3 is not within the scope of the present invention.In the blind-hole type of the tubulose stretcher housing 17 of tensioning apparatus 15
Hole 18 in load bushing 19, it is specifically used for accommodating can the tensioner piston 14 that guide of lengthwise movement ground.In bottom side, bushing 19 wraps
Containing check-valves 20.In addition, being supported by the main spring 16 for being configured to helical compression spring on the bottom of bushing 19, which exists
In the direction of arrow in a manner of interaction loaded in tension piston 14, and for example firmly loading chain and sprocket driving device in figure 3
Unshowned tension element.Main spring 16 surrounds the mistake being installed on by pressure united piece 13 in tensioner piston 14 in supporting zone
Pressure valve 1.The main spring 16 of section S is increased since relatively short pressure united piece 13 can be provided with.Bushing 19 and tensioner piston
14 limit the balancing gate pit 21 filled with hydraulic fluid.Tensioner piston 14 expands pressure while moving out drop under stress
Power room 21, thus check-valves 20 is opened, and hydraulic fluid passes through in 22 feed pressure room 21 of input hole.To tensioner piston 14
When carrying out opposite adjusting campaign, balancing gate pit 21 diminishes in the case of pressure is increased, wherein, hydraulic fluid is diverted through
The leak 23 limited between tensioner piston 14 and bushing 19 is extruded.Once the stress level in balancing gate pit 21 exceedes overvoltage
The Opening pressure of valve 1, then hydraulic fluid is just discharged in through hole 24 by the excess pressure valve 1 of opening.
Reference numerals list
1 excess pressure valve
2 housings
3 bottoms
4 openings
5 end differences
6 valve seats
7 obturators
8 compression springs
9 guide sleeves
10 sleeve bottoms
11 tap holes
12 travel limit portions
13 pressure united pieces
14 tensioner pistons
15 tension equipments
16 main springs
17 stretcher housings
18 holes
19 bushings
20 check-valves
21 balancing gate pits
22 input holes
23 leaks
24 through holes
H walls height (guide sleeve)
S sections (helical compression spring)
Claims (9)
1. a kind of excess pressure valve for being embodied as check valve or check-valves, housing (2) that the excess pressure valve constructs with including can-like and
Valve seat (6), the housing carry bottom (3) and central opening (4), and the obturator (7) that the valve seat is loaded with spring force cooperates with
Effect, it is characterised in that for the structure of the anti-separation of the excess pressure valve (1), the power in aligned manner in the housing (2)
In locking manner or shape sealed load guide sleeve (9), the guide sleeve, which is specifically used for accommodating, loads the obturator (7)
Compression spring (8).
2. excess pressure valve according to claim 1, it is characterised in that the excess pressure valve (1) is loaded in a manner of assembled in advance
In the tension equipment (15) of traction mechanism drive.
3. excess pressure valve according to any one of the preceding claims, it is characterised in that by the guide sleeve (9) of plastic manufacturing
Side include for the obturator (7) receiving portion in other words travel limit portion (12) and opposed side include outflow
Hole (11).
4. excess pressure valve according to claim 1, it is characterised in that the compression spring (8) is supported on the guide sleeve
(9) on sleeve bottom (10), wherein, the wall height (H) of the sleeve bottom (10) of the guide sleeve (9) determines the pressure
The pretightning force of power spring (8).
5. excess pressure valve according to claim 1, it is characterised in that the bottom (3) implemented to the arching of the housing (2) exists
The valve seat (6) for the obturator (7) is formed in the region of end difference (5).
6. excess pressure valve according to claim 5, it is characterised in that sphere is arranged to obturator (7), the sphere is in institute
State in the travel limit portion (12) of the spherical crown shape of guide sleeve (9) or drawn in the stairstepping section of the bottom (3)
Lead.
7. excess pressure valve according to claim 2, it is characterised in that the main spring (16) of the tension equipment (15) is except pressure
The housing (2) of the excess pressure valve (1) is surrounded outside the length of united piece (13) on the outside.
8. excess pressure valve according to claim 2, it is characterised in that the excess pressure valve (1) is incorporated into the tension equipment
(15) in hollow tensioner piston (14).
9. excess pressure valve according to claim 1, it is characterised in that in order to produce the housing (2), non-cutting side is set
Method.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012216056.6A DE102012216056A1 (en) | 2012-09-11 | 2012-09-11 | As a check valve executed pressure relief valve |
| DE102012216056.6 | 2012-09-11 | ||
| PCT/EP2013/060609 WO2014040764A1 (en) | 2012-09-11 | 2013-05-23 | Overpressure valve in the form of a check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104736909A CN104736909A (en) | 2015-06-24 |
| CN104736909B true CN104736909B (en) | 2018-05-11 |
Family
ID=48534368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380043451.7A Expired - Fee Related CN104736909B (en) | 2012-09-11 | 2013-05-23 | It is embodied as the excess pressure valve of check-valves |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9556963B2 (en) |
| CN (1) | CN104736909B (en) |
| DE (1) | DE102012216056A1 (en) |
| WO (1) | WO2014040764A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9360088B2 (en) | 2011-09-22 | 2016-06-07 | Borgwarner Inc. | Chain drive tensioner spring force control mechanism |
| DE102015200606B4 (en) | 2015-01-16 | 2018-05-24 | Schaeffler Technologies AG & Co. KG | Clamping device for a chain drive |
| DE102015200604B4 (en) * | 2015-01-16 | 2019-04-25 | Schaeffler Technologies AG & Co. KG | Clamping device for a chain drive |
| JP6564630B2 (en) * | 2015-06-27 | 2019-08-21 | ボーグワーナー インコーポレーテッド | Integrated check / relief valve |
| DE102015223748B3 (en) * | 2015-11-30 | 2017-01-05 | Geze Gmbh | Housing for driving a door or a window |
| DE102016207779B4 (en) | 2016-05-04 | 2022-01-05 | Schaeffler Technologies AG & Co. KG | Tensioning device for a chain drive |
| US11042169B2 (en) * | 2017-02-22 | 2021-06-22 | Safepush, Llc | Method and apparatus for controlling the flow rate of fluid discharge |
| CN106764377A (en) * | 2017-03-13 | 2017-05-31 | 成都中车电机有限公司 | A kind of unidirectional grease automatic releasing device |
| CN108413081B (en) * | 2018-03-01 | 2019-11-15 | 哈尔滨工业大学 | A kind of forming method of miniature heat-shrink tube straight check valve |
| JP6982243B2 (en) * | 2018-04-18 | 2021-12-17 | 株式会社椿本チエイン | Tensioner |
| CN109084056A (en) * | 2018-08-21 | 2018-12-25 | 上海涛普流体技术有限公司 | Automatically exhaust plug cock is filled |
| US11054049B2 (en) * | 2019-06-19 | 2021-07-06 | Buescher Developments, Llc | Precision fuel metering check valve cartridge |
| CN110906033B (en) * | 2019-11-18 | 2021-12-03 | 中航光电科技股份有限公司 | Modular pressure relief assembly capable of automatically relieving pressure |
| US11339688B2 (en) | 2020-01-29 | 2022-05-24 | Borgwarner, Inc. | Variable camshaft timing valve assembly |
| GB2611911B (en) * | 2020-06-09 | 2023-12-27 | Ashlyn Antony | An apparatus for eliminating slack and vibrations in the chain of a chain drive |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE59101935D1 (en) | 1990-10-31 | 1994-07-21 | Schaeffler Waelzlager Kg | Hydraulic tensioning device for belts or chains. |
| US5643117A (en) | 1995-12-08 | 1997-07-01 | Borg-Warner Automotive, Inc. | Hydraulic tensioner with check valve vent |
| WO1998005883A1 (en) | 1996-08-02 | 1998-02-12 | INA Wälzlager Schaeffler oHG | Tensioning device |
| JP2001021011A (en) | 1999-07-05 | 2001-01-26 | Borg Warner Automotive Kk | Hydraulic tensioner |
| JP2001021013A (en) * | 1999-07-06 | 2001-01-26 | Borg Warner Automotive Kk | Hydraulic tensioner |
| DE19943516B4 (en) * | 1999-09-11 | 2017-01-19 | Schaeffler Technologies AG & Co. KG | nozzle valve |
| JP4243793B2 (en) | 2002-11-27 | 2009-03-25 | Ｎｔｎ株式会社 | Chain tensioner |
| DE102004040222A1 (en) | 2004-08-19 | 2006-03-02 | Ina-Schaeffler Kg | Hydraulic tensioning device for a traction mechanism drive |
| JP3962052B2 (en) | 2004-11-02 | 2007-08-22 | 株式会社椿本チエイン | Hydraulic tensioner |
| EP1813845A1 (en) | 2006-01-31 | 2007-08-01 | Centro Studi Componenti per Veicoli S.P.A. | High-pressure pump for feeding fuel to an internal combustion engine |
| EP1982100A1 (en) | 2006-01-31 | 2008-10-22 | Robert Bosch GmbH | High-pressure pump for feeding fuel to an internal combustion engine |
| DE102008001572A1 (en) * | 2008-05-06 | 2009-11-12 | Robert Bosch Gmbh | Spring retaining sleeve |
| DE102009025355B4 (en) | 2008-07-02 | 2018-09-06 | Schaeffler Technologies AG & Co. KG | Clamping device for a chain and pressure relief valve |
| WO2011031451A2 (en) | 2009-08-25 | 2011-03-17 | Carrier Corporation | Method and apparatus to indicate activation of pressure relief device |
| CN202165539U (en) * | 2011-07-07 | 2012-03-14 | 常州常瑞天力动力机械有限公司 | Tensioning mechanism of diesel engine chain drive system |
-
2012
- 2012-09-11 DE DE102012216056.6A patent/DE102012216056A1/en not_active Withdrawn
-
2013
- 2013-05-23 US US14/427,138 patent/US9556963B2/en not_active Expired - Fee Related
- 2013-05-23 CN CN201380043451.7A patent/CN104736909B/en not_active Expired - Fee Related
- 2013-05-23 WO PCT/EP2013/060609 patent/WO2014040764A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CN104736909A (en) | 2015-06-24 |
| WO2014040764A1 (en) | 2014-03-20 |
| US9556963B2 (en) | 2017-01-31 |
| US20150226345A1 (en) | 2015-08-13 |
| DE102012216056A1 (en) | 2014-03-13 |
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